Wal-Mart impact?

Wherever you go shopping in India, there is a tag “goods once sold cannot taken back” in each item. But in USA, we can use the goods for long time may be 3 or 6 or more months, if you are not satisfied, then return it back. This case is applied almost all shops including WALMART.So, Shall we expect this in BHARTI-WALMART retail stores in India? If yes, then it will revolutionize Indian retail business! Because it will, create a great awareness with consumers and Force manufacturers to produce good quality products.